Home / 156,424,968.90-216,045,615.93-103,018,371.39

Finding the Fourth Proportional to 156,424,968.90, 216,045,615.93 and 103,018,371.39

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Solution

The fourth proportional to 156,424,968.90, 216,045,615.93 and 103,018,371.39 is: 142,283,342.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,424,968.90 : 216,045,615.93 = 103,018,371.39 : x
  2. Step 2: Convert to fraction form
    156,424,968.90/216,045,615.93 = 103,018,371.39/x
  3. Step 3: Cross multiply
    156,424,968.90x = 216,045,615.93 × 103,018,371.39
  4. Step 4: Simplify right side
    156,424,968.90x = 22,256,667,499,058,040
  5. Step 5: Solve for x
    x = 22,256,667,499,058,040/156,424,968.90
  6. Step 6: Final answer
    x = 142,283,342.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.